... ,Q215,Q235,A36,SS400,SS540 3.Length: 6m,9m,12m Channel Steel 1.Size: 51x25x3mm-305x80x13mm 2.Material: Q195,Q215,Q235 ... .720.5 kg/mC8*18.52036412.427.90 kg/mC10*15.3254656.122.80 kg/mC10*20254699.630.00 kg/mC10 ... .837.00 kg/mC12*30305801345.00 kg/m hot rolled channel steel